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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: Carlos Bilbao <carlos.bilbao@amd.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Reshetova, Elena" <elena.reshetova@intel.com>,
	"Shishkin, Alexander" <alexander.shishkin@intel.com>,
	"Shutemov, Kirill" <kirill.shutemov@intel.com>,
	"Kuppuswamy,
	Sathyanarayanan" <sathyanarayanan.kuppuswamy@intel.com>,
	"Kleen, Andi" <andi.kleen@intel.com>,
	"Hansen, Dave" <dave.hansen@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	"Wunner, Lukas" <lukas.wunner@intel.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	Jason Wang <jasowang@redhat.com>,
	"Poimboe, Josh" <jpoimboe@redhat.com>,
	"aarcange@redhat.com" <aarcange@redhat.com>,
	Cfir Cohen <cfir@google.com>, Marc Orr <marcorr@google.com>,
	"jbachmann@google.com" <jbachmann@google.com>,
	"pgonda@google.com" <pgonda@google.com>,
	"keescook@chromium.org" <keescook@chromium.org>,
	James Morris <jmorris@namei.org>,
	Michael Kelley <mikelley@microsoft.com>,
	"Lange, Jon" <jlange@microsoft.com>,
	"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux guest kernel threat model for Confidential Computing
Date: Wed, 8 Feb 2023 04:31:03 -0500	[thread overview]
Message-ID: <20230208041913-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <Y+MAPHZNLeBY13Pj@mit.edu>

On Tue, Feb 07, 2023 at 08:51:56PM -0500, Theodore Ts'o wrote:
> Why not just simply compile a special CoCo kernel that doesn't have
> any drivers that you don't trust.

Or at least, start with that? You can then gradually expand that until
some config is both acceptable to distros and seems sufficiently trusty
to the CoCo project. Lots of kernel features got upstreamed this way.
Requirement to have an arbitrary config satisfy CoCo seems like a very
high bar to clear.

-- 
MST


  reply	other threads:[~2023-02-08  9:32 UTC|newest]

Thread overview: 102+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-25 12:28 Linux guest kernel threat model for Confidential Computing Reshetova, Elena
2023-01-25 12:43 ` Greg Kroah-Hartman
2023-01-25 13:42   ` Dr. David Alan Gilbert
2023-01-25 14:13     ` Daniel P. Berrangé
2023-01-25 15:29       ` Dr. David Alan Gilbert
2023-01-26 14:23       ` Richard Weinberger
2023-01-26 14:58         ` Dr. David Alan Gilbert
2023-01-26 15:13           ` Richard Weinberger
2023-01-26 15:22             ` Dr. David Alan Gilbert
2023-01-26 15:55             ` Daniel P. Berrangé
2023-01-27  9:02             ` Jörg Rödel
2023-01-26 15:43         ` Daniel P. Berrangé
2023-01-27 11:23         ` Reshetova, Elena
2023-01-30 11:30       ` Christophe de Dinechin
2023-01-25 14:22     ` Greg Kroah-Hartman
2023-01-25 14:30       ` James Bottomley
2023-01-25 14:57       ` Dr. David Alan Gilbert
2023-01-25 15:16         ` Greg Kroah-Hartman
2023-01-25 15:45           ` Michael S. Tsirkin
2023-01-25 16:02             ` Kirill A. Shutemov
2023-01-25 17:47               ` Michael S. Tsirkin
2023-01-25 15:50           ` Dr. David Alan Gilbert
2023-01-25 18:47           ` Jiri Kosina
2023-01-26  9:19           ` Jörg Rödel
2023-01-25 21:53         ` Lukas Wunner
2023-01-26 10:48           ` Dr. David Alan Gilbert
2023-01-26 11:24             ` Jonathan Cameron
2023-01-26 13:32             ` Samuel Ortiz
     [not found]           ` <CAGXJix9-cXNW7EwJf0PVzj_Qmt5fmQvBX1KvXfRX5NAeEpnMvw@mail.gmail.com>
2023-01-26 10:58             ` Jonathan Cameron
2023-01-26 13:15               ` Samuel Ortiz
2023-01-26 16:07                 ` Jonathan Cameron
2023-01-27  7:02                   ` Samuel Ortiz
2023-01-26 15:44             ` Lukas Wunner
2023-01-26 16:25               ` Michael S. Tsirkin
2023-01-26 21:41                 ` Lukas Wunner
2023-01-27  7:17               ` Samuel Ortiz
2023-01-25 20:13       ` Jiri Kosina
2023-01-26 13:13       ` Reshetova, Elena
2023-01-25 15:29   ` Reshetova, Elena
2023-01-25 16:40     ` Theodore Ts'o
2023-01-26  8:08       ` Reshetova, Elena
2023-01-26 11:19     ` Leon Romanovsky
2023-01-26 11:29       ` Reshetova, Elena
2023-01-26 12:30         ` Leon Romanovsky
2023-01-26 13:28           ` Reshetova, Elena
2023-01-26 13:50             ` Leon Romanovsky
2023-01-26 20:54             ` Theodore Ts'o
2023-01-27 19:24             ` James Bottomley
2023-01-30  7:42               ` Reshetova, Elena
2023-01-30 12:40                 ` James Bottomley
2023-01-31 11:31                   ` Reshetova, Elena
2023-01-31 13:28                     ` James Bottomley
2023-01-31 15:14                       ` Christophe de Dinechin
2023-01-31 17:39                         ` Michael S. Tsirkin
2023-02-01 10:52                           ` Christophe de Dinechin Dupont de Dinechin
2023-02-01 11:01                             ` Michael S. Tsirkin
2023-02-01 13:15                               ` Christophe de Dinechin Dupont de Dinechin
2023-02-01 16:02                                 ` Michael S. Tsirkin
2023-02-01 17:13                                   ` Christophe de Dinechin
2023-02-06 18:58                                     ` Dr. David Alan Gilbert
2023-02-02  3:24                               ` Jason Wang
2023-02-01 10:24                         ` Christophe de Dinechin
2023-01-31 16:34                       ` Reshetova, Elena
2023-01-31 17:49                         ` James Bottomley
2023-02-02 14:51                     ` Jeremi Piotrowski
2023-02-03 14:05                       ` Reshetova, Elena
2023-01-27  9:32           ` Jörg Rödel
2023-01-26 13:58         ` Dr. David Alan Gilbert
2023-01-26 17:48           ` Reshetova, Elena
2023-01-26 18:06             ` Leon Romanovsky
2023-01-26 18:14               ` Dr. David Alan Gilbert
2023-01-26 16:29     ` Michael S. Tsirkin
2023-01-27  8:52       ` Reshetova, Elena
2023-01-27 10:04         ` Michael S. Tsirkin
2023-01-27 12:25           ` Reshetova, Elena
2023-01-27 14:32             ` Michael S. Tsirkin
2023-01-27 20:51             ` Carlos Bilbao
2023-01-30 11:36 ` Christophe de Dinechin
2023-01-30 12:00   ` Kirill A. Shutemov
2023-01-30 15:14     ` Michael S. Tsirkin
2023-01-31 10:06   ` Reshetova, Elena
2023-01-31 16:52     ` Christophe de Dinechin
2023-02-02 11:31       ` Reshetova, Elena
2023-02-07  0:27 ` Carlos Bilbao
2023-02-07  6:03   ` Greg Kroah-Hartman
2023-02-07 19:53     ` Carlos Bilbao
2023-02-07 21:55       ` Michael S. Tsirkin
2023-02-08  1:51       ` Theodore Ts'o
2023-02-08  9:31         ` Michael S. Tsirkin [this message]
2023-02-08 10:44           ` Reshetova, Elena
2023-02-08 10:58             ` Greg Kroah-Hartman
2023-02-08 16:19               ` Christophe de Dinechin
2023-02-08 17:29                 ` Greg Kroah-Hartman
2023-02-08 18:02                   ` Dr. David Alan Gilbert
2023-02-08 18:58                     ` Thomas Gleixner
2023-02-09 19:48                       ` Dr. David Alan Gilbert
2023-02-08 13:00             ` Michael S. Tsirkin
2023-02-08 13:42             ` Theodore Ts'o
2023-02-08  7:19       ` Greg Kroah-Hartman
2023-02-08 10:16       ` Reshetova, Elena
2023-02-08 13:15         ` Michael S. Tsirkin
2023-02-09 14:30           ` Reshetova, Elena

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